Classifications

• • G—PHYSICS
  • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
  • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
  • G03C7/00—Multicolour photographic processes or agents therefor; Regeneration of such processing agents; Photosensitive materials for multicolour processes
  • G03C7/30—Colour processes using colour-coupling substances; Materials therefor; Preparing or processing such materials
  • G03C7/305—Substances liberating photographically active agents, e.g. development-inhibiting releasing couplers
  • G03C7/30541—Substances liberating photographically active agents, e.g. development-inhibiting releasing couplers characterised by the released group
  • G03C7/30547—Dyes
• • C—CHEMISTRY; METALLURGY
  • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
  • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
  • C09B45/00—Complex metal compounds of azo dyes
• • G—PHYSICS
  • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
  • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
  • G03C8/00—Diffusion transfer processes or agents therefor; Photosensitive materials for such processes
  • G03C8/02—Photosensitive materials characterised by the image-forming section
  • G03C8/08—Photosensitive materials characterised by the image-forming section the substances transferred by diffusion consisting of organic compounds
  • G03C8/10—Photosensitive materials characterised by the image-forming section the substances transferred by diffusion consisting of organic compounds of dyes or their precursors

Definitions

• This invention relates to a photographic recording material employing a novel nondiffusible, premetallized, yellow, redox dye-releasing (RDR) compound which, as a function of development of a silver halide emulsion layer, releases a diffusible yellow dye, or precursor thereof, to form a metal-complexed dye image in an image-receiving layer.
• RDR redox dye-releasing
• U.S. Patent 4,148,643 discloses nondiffusible compounds having a releasable arylazoenol dye moiety.
• the concept of premetallization of such compounds is not suggested in this patent.
• a fused heterocyclic ring system attached to the azo linkage would provide a more stable 2:1 dye:metal complex than a hydroxy chelating group ortho to the azo linkage, as will be shown hereinafter by the comparative tests.
• the object of this invention is to provide improved metal-complexed, yellow dye-releasing compounds so that dyes which are released imagewise during processing can diffuse to an image-receiving layer to form metal-complexed, dye transfer images having better hue, minimum unwanted absorption outside the blue region of the spectrum, narrower bandwidth, rapid diffusion rate and shorter access time than those of the prior art, as well as good stability to heat, light and chemical reagents.
• a premetallized RDR in comparison to a metallizable RDR, provides the further advantage of not having to provide a metal in the mordant layer of the photographic recording material. Free metal ions sometimes tend to diffuse throughout the recording material and to cause sensitometric problems.
• a photographic recording material in accordance with this invention comprises at least one photosensitive silver halide emulsion layer having associated therewith a nondiffusible dye image-providing compound having at least one releasable yellow dye moiety, or precursor thereof, characterized in that said compound has the structural formula: wherein:
• Typical 5 or 6 membered heterocyclic or carbocyclic rings which can be formed with both L and Z are pyrazolinone, pyrazolidinedione, chromandione and hydantoin.
• Me can be any polyvalent, hexacoordinate metal ion as long as it performs the desired function of forming the dye:metal complex.
• metal ion there can be employed, for example, zinc(II), nickel(II), copper(II), cobalt(II), cobalt(III), platinum(II), palladium(II) or chromium(III) ions. Especially good results have been obtained with nickel(II) ions.
• Lig can be any monoanionic tridentate ligand which will coordinate with the dye:metal complex.
• There can be employed, for example, o-(2-aminoethylamino)phenol, o-(2-pyridyl- methylamino)phenol, N-(2-aminoethyl)glycine, N-(2-pyridylmethylamino)glycine, N-(3-hydroxyl-2-pyridyl- methylamino)glycine, 2-aminomethyl-l-methyl-4-imidazolecarboxylic acid, or another tridentate dye moiety.
• Lig in the above formula is another dye moiety of the structure illustrated above. This results in a 2:1 dye:metal complex having the following structural formula: wherein each X, Z, R, CAR, n and Me is as defined above.
• X represents the atoms necessary to complete an unsubstituted or a substituted quinoline, quinoxaline, indolenine or benzimidazole ring.
• X represents the atoms necessary to complete a quinoline ring
• Z is alkyl
• R is CN.
• CAR is attached to the 5-position of a quinoline ring.
• Z and L in the formula and definition described above can be any alkyl or aryl group (including substituted alkyl or aryl groups) as long as the diffusibility of the dye moiety is not encumbered.
• Good results are obtained with alkyl or substituted alkyl groups having from 1 to 12 carbon atoms, such as methyl, ethyl, isopropyl, t-butyl, pentyl; arylalkyl groups having from 7 to 13 carbon atoms, such as benzyl; alkoxyalkyl groups having from 2 to 12 carbon atoms such as methoxyethyl; aryloxy alkyl groups having from 7 to 13 carbon atoms such as phenoxyethyl or alkoxy carbonylalkyl groups having from 3 to 12 total atoms such as ethoxycarbonylmethyl; or aryl or substituted aryl groups having from 6 to 12 carbon atoms such as phenyl, alkoxyl- phenyl,
• CAR may have attached thereto two azo dye moieties in which case two dye moieties will be released from one CAR moiety.
• substituents may also be present in the rings illustrated above, such as alkyl or acyl of 1 to 6 carbon atoms, aryl of 6 to 10 carbon atoms, aralkyl of 7 to 12 carbon atoms, alkylsulfonyl or alkoxy wherein the alkyl moiety has from 1 to 6 carbon atoms, halogens such as chloro or bromo, amino, morpholino, phenylsulfamoyl, solubilizing groups such as sulfonamido, sulfamoyl, carboxy, sulfo or hydrolyzable precursors thereof.
• Compounds useful in this invention can be prepared by reaction of B-ketonitriles or B-dicarbonyl compounds with diazotized 8-aminoquino- line, 5-amino pyrazine or like derivatives.
• Representative image-providing RDR compounds useful in this invention include the following:
• a process for producing a photographic transfer image in color utilizing photographic recording materials as described herein comprises:
• the above-described metal-complexed azo dye transfer image formed in the receiving layer contains a photographic mordant to bind the dye or coordination complex thereto.
• the coordination complex so bound has the structural formula: wherein X, Z, R, Lig and Me are as defined above.
• the photographic recording material usually contains a photographic mordant or image-receiving layer to bind the dye or coordination complex thereto.
• an imagewise distribution of azo dye in addition to developed silver is obtained in this recording material if the residual silver and silver halide are removed by any conventional manner well known to those skilled in the photographic art, such as a bleach bath, followed by a fix bath or a bleach-fix bath.
• the imagewise distribution of azo dye may also diffuse out of the recording material into these baths, if desired, rather than to an image-receiving element. If a negative-working silver halide emulsion is employed a positive color image, such as a reflection print, a color transparency or a motion picture film, is produced in this manner. If a direct-positive silver halide emulsion is employed a negative color image is produced.
• the photographic recording material in the above-described process can be treated in any manner with an alkaline processing composition to effect or initiate development.
• the recording material may also comprise a dye image-receiving layer.
• the alkaline processing composition and means containing same for discharge are preferably contained within the recording material.
• a rupturable container which is adapted to be positioned during processing so that a compressive force applied to the container by pressure-applying members, such as would be found in a camera designed for in-camera processing, will effect a discharge of the container's contents within the recording material.
• the concentration of the dye-releasing compounds that are employed in the present invention may be varied over a wide range, depending upon the particular compound employed and the results which are desired.
• the dye-releasing compounds may be coated in layers at a concentration of 0.1 to 3 g/m 2 by using coating solutions containing between 0.5 and 8 percent by weight of the dye-releasing compound distributed in a hydrophilic film-forming natural material or synthetic polymer, such as gelatin or polyvinyl alcohol, which is adapted to be permeated by aqueous alkaline processing composition.
• the silver halide developer or electron transfer agent (ETA) employed in the process becomes oxidized upon development and reduces silver halide to silver metal.
• the oxidized developer then cross-oxidizes the dye image-providing compound.
• the product of cross-oxidation then undergoes alkaline hydrolysis, thus releasing an imagewise distribution of diffusible azo dye which then diffuses to the receiving layer to provide the dye image.
• the diffusible moiety is transferable in alkaline processing composition either by virtue of its self-diffusivity or by its having attached to it one or more solubilizing groups, for example, a carboxy, sulpho, sulphonamido, hydroxy or morpholino group.
• nondiffusing used herein has the meaning commonly applied to the term in photography and denotes materials that, for all practical purposes, do not migrate or wander through organic colloid layers, such as gelatin, in the photographic recording materials of this invention in an alkaline medium and preferably when processed in a medium having a pH of 11 or greater. The same meaning is to be attached to the term “immobile”.
• diffusible has the converse meaning and denotes materials having the property of diffusing effectively through the colloid layers of the photographic recording materials in an alkaline medium.
• Mobile has the same meaning as "diffusible”.
• a receiving element was prepared comprising a poly(ethylene terephthalate) film support having thereon a nickel sulfate hexahydrate (0.58 g/m 2 )/gelatin (1.08 g/m 2 ) metal complexing layer, and a poly(4-vinylpyridine)/gelatin mordant layer (each at 2.15 g/m l ), which forms metal complexes with the unmetallized dyes.
• An alternative receiving element was used with the premetallized dye-complexes. It comprised a poly(ethylene terephthalate) film support having thereon a layer of gelatin (1.1 g/m 2 ) and a cationic mordant layer of poly(styrene-co-1-vinylimidazole-co-3-benzyl-l-vinylimidazolium chloride) (50:40:10) (4.5 g/m 2 ) and gelatin (2.2 g/m 2 ).
• the above receiving elements at pH 7 were then subjected to 10 days irradiation by a high intensity daylight (HID), 6000W Xenon arc lamp, each element receiving 50,000 lux through a Wratten 2B (ultraviolet) filter at 38°C.
• the percent fade represents the loss in density at ⁇ max after irradiation.
• Approximately 0.075 mmol of the released dye was dissolved in 10 ml of 0.125 N potassium hydroxide. After the dye was completely dissolved, 20 ml of a viscous composition was added; and the resulting solution, stirred for at least 20 minutes, was 0.0025 M in dye at a pH of 13.4.
• the viscous composition was prepared from 46.2 g potassium hydroxide and 54 g carboxymethylcellulose dissolved in 1200 ml water. The dye solution was then spread between the receiver and a clear polyester cover sheet. This "sandwich" was then passed between spaced rollers so that the gap containing the viscous solution had a thickness of 102 ⁇ m.
• a donor element containing a thick pad of deionized acid-processed gelatin (26 g/m 2 ) hardened with 2 percent bis(vinylsulfonylmethyl)ether, was imbibed with a solution of 0.1 M in potassium hydroxide and 1.3 X 10- 3 M in dye. The pad was soaked to full penetration, surface wiped, and then laminated in direct contact to the above receiving element which had been presoaked for 5 minutes at 0.1 M KOH. The t-1/2 of dye transfer was obtained as in the solution test. The diffusion times by the "gel pad test" are substantially longer than by the "solution test”.
• a photographic element was prepared by coating the following layers in the order recited on a transparent poly(ethylene terephthalate) film support. Coverages are parenthetically given in g/m 2 unless otherwise stated.
• a receiving element was prepared by coating a mordant layer of a mixture of poly(N-vinylimidazole) (1.6 g/m 2 ) and gelatin (1.6 g/m 2 ) coated over a gelatin layer (0.81 g/m 2 ) on a polyethylene-coated paper support.
• the photographic element was given a full exposure to D max then soaked for 15 seconds in an activator containing, per liter of developer: 33.7 g potassium hydroxide, 2.0 g potassium bromide, 3.0 g 5-methylbenzotriazole, and 2.0 g 11-aminoundecanoic acid.
• the photographic element was then laminated to the receiver.
• the laminate was then cut into four pieces and placed on a constant temperature (24°C) block.
• the four receiver pieces were peeled off after 1, 3, 5 and 10 minutes, each dried, and the Status A density recorded.
• Compound 2 comprising two different dye moieties and having a 2:1 dye to nickel ratio, was prepared from the diaquo-acetato 1:1 RDR Compound Q below.
• a solution of 10.4 g (0.0418 m) nickel acetate tetrahydrate in 40 ml water was diluted with 200 ml ethanol and 100 ml tetrahydrofuran.
• a previously prepared solution of 4.85 g (0.00417 m) RDR Compound X in 75 ml tetrahydrofuran was added to the nickel acetate solution dropwise over 20 minutes.
• the reaction mixture was stirred at room temperature under a nitrogen atmosphere for 48 hours, concentrated in vacuo to approximately 1/2 volume and diluted with 500 ml ethyl ether.
• the resulting solution was extracted five times with 50 ml portions of water, dried (MgSO 4 ) and concentrated to 50 ml.
• Compound J in column 32 is the nickel complex of the following dye compound:
• the nickel-dye complex is listed as having a ⁇ max of 462 nm and a half-band width of 76 nm when adsorbed to a cationic polymeric mordant on a film strip.
• a 1:1 dioxane/water mixture at pH 7.0 of this nickel-dye complex was prepared. It absorbed at 444 nm in the presence of excess nickel ions and 402 nm in the absence of nickel ions.
• Compound C has the following structure: The compound has a quinoline nitrogen chelating group instead of a hydroxyl chelating group as in Compound J of the '643 patent. A 1:1 dioxane/water mixture at pH 7.0 of the above Compound C was prepared. It absorbed at 452 nm in the presence of excess nickel ions and at 387 nm in the absence of nickel ions.

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• Physics & Mathematics (AREA)
• General Physics & Mathematics (AREA)
• Chemical & Material Sciences (AREA)
• Organic Chemistry (AREA)
• Plural Heterocyclic Compounds (AREA)
• Silver Salt Photography Or Processing Solution Therefor (AREA)
• Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)

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• 1982
  • 1982-06-28 US US06/392,509 patent/US4407931A/en not_active Expired - Fee Related
• 1983
  • 1983-01-25 CA CA000420169A patent/CA1207757A/en not_active Expired
  • 1983-06-09 EP EP83105638A patent/EP0097849B1/de not_active Expired
  • 1983-06-09 DE DE8383105638T patent/DE3366042D1/de not_active Expired
  • 1983-06-27 JP JP58114431A patent/JPS597950A/ja active Pending

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